EP0553489A1 - Conduite pour automobiles en matière plastique en mono- ou multi-couches fabriquée par coextrusion - Google Patents

Conduite pour automobiles en matière plastique en mono- ou multi-couches fabriquée par coextrusion Download PDF

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Publication number
EP0553489A1
EP0553489A1 EP92122018A EP92122018A EP0553489A1 EP 0553489 A1 EP0553489 A1 EP 0553489A1 EP 92122018 A EP92122018 A EP 92122018A EP 92122018 A EP92122018 A EP 92122018A EP 0553489 A1 EP0553489 A1 EP 0553489A1
Authority
EP
European Patent Office
Prior art keywords
plastic
layer
din
motor vehicle
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92122018A
Other languages
German (de)
English (en)
Other versions
EP0553489B1 (fr
Inventor
Erwin Dipl.-Ing. Brunnhofer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technoflow Tube Systems GmbH
Original Assignee
Technoform Caprano and Brunnhofer GmbH and Co KG
Technoflow Tube Systems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Technoform Caprano and Brunnhofer GmbH and Co KG, Technoflow Tube Systems GmbH filed Critical Technoform Caprano and Brunnhofer GmbH and Co KG
Publication of EP0553489A1 publication Critical patent/EP0553489A1/fr
Application granted granted Critical
Publication of EP0553489B1 publication Critical patent/EP0553489B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/133—Rigid pipes of plastics with or without reinforcement the walls consisting of two layers

Definitions

  • the invention relates to a motor vehicle pipeline made of a single-layer or a multi-layer extruded plastic pipe of a given pipe wall thickness with a given hardness, strength, elongation at break and notched impact strength, which pipe is set up for a given desired function in the entire application temperature range down to minus 40 ° C and consists of a pipe wall material customary in motor vehicles.
  • the term pipe also includes a less flexible hose.
  • the target function is, for example, that of a fuel line, a brake line, a vacuum line, a cooling water line, a control line or the like.
  • Hardness, strength, elongation at break and impact strength are set up by selecting the tube wall plastic for the single-layer or multi-layer tube wall so that the target functions are fulfilled . Hardness, strength, elongation at break and notched impact strength are also referred to below as mechanical quality parameters.
  • Typical automotive piping or plastic pipes for automotive piping are e.g. B. described in DE 35 10 395, DE 37 15 251, DE 38 21 723 and DE 40 01 125.
  • the plastic pipes of such motor vehicle pipelines also regularly undergo calibration in special, mostly cooled calibration tools, e.g. B. by a so-called. Vacuum calibration.
  • the invention is based on the object of specifying a motor vehicle pipeline which has the structure described at the outset and which fulfills the desired functions described and which is free from disruptive calibration orientations and can be produced simply without melting a surface layer.
  • the object of the invention is a motor vehicle pipeline made of a single-layer or a multi-layer extruded plastic pipe of a given pipe wall thickness with a given hardness, strength, elongation at break and impact strength, which pipe is set up and out for a given setpoint function in the entire application temperature range down to minus 40 ° C
  • a conventional pipe wall plastic with a plastic layer that is insignificant for the intended function and which is cohesively applied to the outer surface of the plastic pipe by means of coextrusion in the manufacture of the plastic pipe, which layer has a factor of at most 0.8 less than the pipe wall plastic over the entire application temperature range Has hardness and is therefore set soft, and wherein the plastic tube in its outer wall by the thickness of the relax plastic layer, which by a factor of at least 0.5 is less than the tube wall thickness of the single-layer or multi-layer tube wall, is kept free in the entire application temperature range from the calibration orientations, which interfere with the values of strength, elongation at break and notched impact strength.
  • the invention relates in principle to motor vehicle pipelines, the plastic pipes of which are produced in a known manner.
  • the specified and prescribed mechanical quality parameters can be set up in a known manner and, to this extent, known technologies can be used.
  • the manufacturing-related calibration orientations do not have to be accepted and subsequently eliminated because they do not even occur. This is due to the fact that the thin relaxation layer made of soft plastic and applied in the outer layer of the actual plastic tube has prevented the formation of calibration orientations. It remains to be seen whether this relaxation layer itself has a more or less pronounced calibration orientation. As a result of the softness of this layer, the calibration orientation and thus correlating phenomena in the relaxation layer cannot influence the mechanical quality parameters of the actual plastic pipe.
  • the actual plastic tube is laminated to protect it by the relax layer.
  • the known and proven tube wall plastics can be used, preferably a tube wall plastic as specified in claim 2.
  • the plastic tube can have a wall thickness in the range specified in claim 3.
  • the motor vehicle pipeline shown in the figure consists of a single-layer in the left part of the figure, in the right part of the figure multi-layer plastic pipe of a given pipe wall thickness with a given hardness, strength, elongation at break and notched impact strength.
  • the pipeline is set up for one of the nominal functions specified at the outset, namely in the entire application temperature range down to minus 40 ° C. It consists of a tube wall plastic customary in motor vehicles. In this regard, reference is also made to the references cited at the beginning.
  • a relax plastic layer 2 is applied to the surface of the actual plastic tube 1 by coextrusion in the manufacture of the plastic tube 1. This means that the connection takes place without delamination, as it were with molecular fusion.
  • the relax plastic layer 2 is particularly adjusted. Compared to the tube wall plastic, it has a lower hardness over the entire application temperature range and is therefore set to be relatively soft. In this regard, reference is made to claim 1. But the thickness of the relax plastic layer 2 is also particularly adjusted. It is less than the tube wall thickness of the single-layer or multi-layer tube wall of the plastic tube 1 corresponds. In this way it can be achieved that the plastic tube 1 is kept free in the entire application temperature range from the calibration orientations of the molecules which interfere with the values of the strength, the elongation at break and notched impact strength.
  • the relax plastic layer must not be too thin, but should not be too thick either, which is referred to claim 1. The appropriate thickness can easily be determined by tests in the laboratory.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
EP92122018A 1992-01-29 1992-12-24 Conduite pour automobiles en matière plastique en mono- ou multi-couches fabriquée par coextrusion Expired - Lifetime EP0553489B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4202397 1992-01-29
DE4202397A DE4202397C2 (de) 1992-01-29 1992-01-29 Kraftfahrzeug-Rohrleitung aus einem einschichtigen oder einem mehrschichtigen extrudierten Kunststoffrohr

Publications (2)

Publication Number Publication Date
EP0553489A1 true EP0553489A1 (fr) 1993-08-04
EP0553489B1 EP0553489B1 (fr) 1997-09-03

Family

ID=6450473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92122018A Expired - Lifetime EP0553489B1 (fr) 1992-01-29 1992-12-24 Conduite pour automobiles en matière plastique en mono- ou multi-couches fabriquée par coextrusion

Country Status (4)

Country Link
US (1) US5390705A (fr)
EP (1) EP0553489B1 (fr)
DE (1) DE4202397C2 (fr)
ES (1) ES2106816T3 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9408767D0 (en) * 1994-05-04 1994-06-22 Hepworth Building Prod Piping
US5468129A (en) * 1994-08-05 1995-11-21 Cole Parmer Instrument Company Peristaltic pump
FR2726345B1 (fr) * 1994-11-02 1996-12-27 Atochem Elf Sa Tubes en polyamide et en polyethylene pour la distribution du gaz domestique
SE505937C2 (sv) * 1996-03-04 1997-10-27 Borealis As Flerskiktat rör
AU2110597A (en) 1996-03-04 1997-09-22 Borealis As Multilayer pipe
US6000438A (en) * 1998-02-13 1999-12-14 Mcdermott Technology, Inc. Phase change insulation for subsea flowlines
DE19831898B4 (de) * 1998-07-16 2004-01-22 Rasmussen Gmbh Fluidleitung für Kraftstoffe und Kraftstoffdämpfe
US6230749B1 (en) * 1999-11-29 2001-05-15 Norma Products (Us) Inc. Multilayer tube
ES2274755T3 (es) 2000-08-02 2007-06-01 Ti Automotive (Fuldabruck) Gmbh Tuberia de vehiculo automovil.
US6670004B1 (en) * 2000-08-02 2003-12-30 Saint-Gobain Performance Plastics Corporation Laminated nylon air brake tubing
EP1249336B1 (fr) * 2001-04-10 2004-07-14 Rasmussen GmbH Tube multicouche pour fluides contenant des hydrocarbones
JP4234333B2 (ja) * 2001-08-07 2009-03-04 株式会社パイオラックス 自動車配管用樹脂チューブ及びその製造法
US6591871B2 (en) * 2001-09-13 2003-07-15 Dayco Products, Llc Low permeation polybutylene terephthalate and polybutylene naphthalate fuel and vapor tubes
JP2003287165A (ja) * 2002-01-24 2003-10-10 Tokai Rubber Ind Ltd 燃料用ホース
US20030145896A1 (en) * 2002-02-06 2003-08-07 Saint-Gobain Performance Plastics Corporation Coiled laminated air brake tubing
US20040058111A1 (en) * 2002-09-23 2004-03-25 Saint-Gobain Performance Plastics Corp. Compounded nylon 6, nylon 12 material for air brake systems
US20040096615A1 (en) * 2002-11-18 2004-05-20 Saint-Gobain Performance Plastics Corp. Hose comprising modified nylon 6,12 material
EP2261032B1 (fr) 2005-04-29 2016-05-25 Arkema France Tube multicouche à base de polyamide pour le transfert de fluides
GB2437332B (en) * 2006-04-21 2008-03-12 Miniflex Ltd Tube
ES2363681B1 (es) * 2011-05-05 2012-04-20 Industrie Ilpea España, S.A. Tubo
CN108027090A (zh) * 2015-09-28 2018-05-11 株式会社普利司通 软管用树脂材料、软管管材和软管

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454039A1 (fr) * 1979-04-10 1980-11-07 Automotive Prod Co Ltd Tube souple pour fluide
EP0445706A2 (fr) * 1990-03-05 1991-09-11 Ems-Inventa Ag Conduites multi-couches pour carburant

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US2053140A (en) * 1933-08-22 1936-09-01 Ball Brothers Co Jar sealing ring
US2932323A (en) * 1957-02-25 1960-04-12 Robert S Aries Polyethylene articles
US2971538A (en) * 1958-01-31 1961-02-14 Moore & Co Samuel Extruded tubing
US3561493A (en) * 1965-04-21 1971-02-09 Paul Maillard Composite tubes and method of manufacturing same
US3618614A (en) * 1969-05-06 1971-11-09 Scient Tube Products Inc Nontoxic radiopaque multiwall medical-surgical tubings
US3762986A (en) * 1971-02-26 1973-10-02 Allied Chem Polyamide composite film
JPS5419027B2 (fr) * 1974-09-26 1979-07-12
US4303457A (en) * 1975-10-06 1981-12-01 Eaton Corporation Method of making a semi-conductive paint hose
US4196464A (en) * 1978-02-23 1980-04-01 Eaton Corporation Semi-conductive layer-containing reinforced pressure hose and method of making same
JPS54159723A (en) * 1978-06-08 1979-12-17 Mitsubishi Plastics Ind Ltd Polyethylene pipe having different densities in thickness direction
CA1145272A (fr) * 1979-11-28 1983-04-26 Jerker Skarelius Tube resistant a la diffusion gazeuse et methode d'utilisation
US4474217A (en) * 1980-03-31 1984-10-02 The Goodyear Tire & Rubber Company Hose structure
US4424834A (en) * 1982-09-22 1984-01-10 Kyoraku Co., Ltd. Elastic shaped article
DE3510395A1 (de) * 1985-03-22 1986-09-25 Technoform Caprano + Brunnhofer KG, 3501 Fuldabrück Kraftstoffuehrende, mit vorgegebener laenge fest installierbare leitung fuer ein kraftfahrzeug
FR2596692B1 (fr) * 1986-04-04 1988-09-09 Atochem Tubes en matiere plastique semi-cristalline extrudes presentant une resistance au choc a froid et a la traction amelioree par un traitement thermique et leur procede de fabrication
US4791965A (en) * 1987-02-13 1988-12-20 James Hardie Irrigation, Inc. Co-extruded tube
US5052444A (en) * 1987-04-30 1991-10-01 The Fluorocarbon Company Reinforced fluid hose having on-bonded tape
DE3715251A1 (de) * 1987-05-08 1988-12-01 Caprano & Brunnhofer Kraftfahrzeug-rohrleitung fuer die fuehrung eines alkoholischen mediums
DE3821723C1 (en) * 1988-06-28 1989-09-21 Technoform Caprano + Brunnhofer Kg, 3501 Fuldabrueck, De Multilayer motor vehicle pipe produced by coextrusion
DE3827092C1 (en) * 1988-08-10 1989-09-07 Technoform Caprano + Brunnhofer Kg, 3501 Fuldabrueck, De Use of a multi-layered plastic pipe, produced by coextrusion, as a heat-resistant pipe for fuel-carrying lines in motor vehicles
DE4001125C1 (fr) * 1989-11-20 1990-12-13 Technoform Caprano + Brunnhofer Kg, 3501 Fuldabrueck, De
US5154357A (en) * 1991-03-22 1992-10-13 Ransburg Corporation Peristaltic voltage blocks
DE4202399C1 (fr) * 1992-01-29 1993-02-04 Technoform Caprano + Brunnhofer Kg, 3501 Fuldabrueck, De

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454039A1 (fr) * 1979-04-10 1980-11-07 Automotive Prod Co Ltd Tube souple pour fluide
EP0445706A2 (fr) * 1990-03-05 1991-09-11 Ems-Inventa Ag Conduites multi-couches pour carburant

Also Published As

Publication number Publication date
US5390705A (en) 1995-02-21
ES2106816T3 (es) 1997-11-16
DE4202397C2 (de) 1999-01-14
EP0553489B1 (fr) 1997-09-03
DE4202397C1 (fr) 1993-02-11

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